Base for a multi-parameter sonde



FIG. 1 is a top, front, side perspective view of a base for a multi-parameter sonde;

FIG. 2 is a side view thereof, it being understood the other side is identical in that the surface shape is cylindrical; and,

FIG. 3 is a bottom view thereof.

The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design. 

CLAIM The ornamental design for a base of a multi-parameter sonde, as shown and described. 